Drilling fixture



.H. T. KINGSBURY El' AL .DRILLING' FIXTURE.

Filed Apri 5, 192s s Sheets-sheet 1 Jano l DRILLING FIXTURE Filed April 5, 192:5

H. T. KINGsBuRv-sr'm.

I As sn eetsjsheet 3 v @wl/A www Patented Jan. 19, 1926.

UNITED STATES 1,570,156 PATENT OFFICE.

HARRY T. KINGSBURY AND EDWARD J. KINGSBURY, F KEENE, NEW HAMPSHIRE.

DRILLING FIXTURE.

Application filed April 3, 1923. Serial No. 629,717.

To all whom z't may concern:

Be it known that we, HARRY T. KINGSBURY and EDWARD J. KINGSBURY, citizens of the United States, residing respectively, at

Keene, in the county of Cheshire, State of New Hampshire, have invented certain new and useful Improvements in Drilling Fixtures, of which the following is a description, reference being had to the accompany- '10 ing drawing, and to the figures of reference marked thereon.

rlhe invention relates to new and useful improvements in drilling fixtures.

The object of the invention is to provide a drilling, milling and toppingfixture which is adapted to hold a rivet, bolt,` nipple or the likev in vertical position while being drilled, as well as means whereby the rivets, bolts, nipples or the like are fed one at a time and rigidly held while being drilled, milled or topped. e

Another object of the invention is to provide a drilling fixture in which the feeding mechanism is timed with the drill so thatV one nipple, rivet or the like is pushed from the device by another on its way to drilling position while the drill is receding preparatory to another drilling operation, and the drill being frictionally fed, as disclosed in 3U my Patent No. 1,37 9,7 65, the jamming of a nipple will stop Ythe feeding, as well as the mechanism for feeding the nipple and prevent the breaking of any parts of the drill or fixture.

Another object of the invention is to provide a fixture of this character, in'which the discharge of the bored nipple and the placing of another in position is ractically simultaneous so that the drill will recede and instantly advance-losing no time in the interval between the discharge of the bored nipple andthe placing of another nipple in position to be bored.

A still further object of the invention .is to provide a simple, cheap and effective drilling fixture having certain details of structure and combination of parts hereinafter more `fully pointed out.

In the -accompanying drawings- Figure 1 is a side elevation of my improvedl drilling fixture, in` combination with my improved automatic drilling machine and feeding mechanism;

Fig. 2 is an enlarged top lplan view of Fi 1, 'showing the feeding mec anism remove Fig. 3 is a vertical transverse sectional view taken on the line 3-3 of Fig. 2; and

Fig. 4 is a transverse vertical sectional view taken on the line 4-4 of Fig. 2.

Referring now to the drawings, 1 repre- G0 sents a base, which, as shown, is moimted upon the base 2 of the drilling machine and is provided at its upper end with an enlargedk flat table-like portion 3, which is arranged in a plane slightly below the drill 4, 5

`as clearly shown in Fie. 1 of the drawings.

The drill 4 is remova ly mounted in the drill spindle 5 and is reciprocated back and forth as fully disclosed in my prior patent. The arm 6 isy driven forward by means of 70 the cam 6 and which arm operates the drillk fixture as will now be described. The drill fixture takes its power off of the arm 6, by means of the rod Y7, and thus if this rodv meets with any undue resistance-by the jamming of a` nipple-the same will stop until the nipple is removed and the drill will also stop.

Pivotally mounted at 8- on the base is the Y-'shaped `feed lever 9, having its stem 30 10 provided with an elongated slot 11, in which is adjustably mounted the swiveled member 12, to whichthe rod 7 is connected, whereby the throw of the Y -shaped lever may be varied for nipples or rivets of different sizes, as will be-flater described. Thev forward edge of the base 3 is provided with an elongated vertically disposed guide plate 13 whichextends above the face of the base lfor guiding the nipples forward to the drilling position. Rigidly but adjustably supported by the base 3, between the arms of the Y-shaped lever 9, is a guide member 14, which has its outer end slightly curved or V-shaped, to conform with the shape of the nipple, as shown in Fig. 2 and indicatedat 15. This guide is arranged at a slight angle to the guide plate 13 and about midway its ends. The end of the arm 16 of the Y-shaped lever 9 has adjustably attached thereto, by 100 means of screws 17, the feed plate 18 which engages. the nipple and 'feeds it forward to drilling position and simultaneously ushes the previously drilled nipple from t e lixture.

' The guide plate 13 is also the clamping plate against vwhich the nipple is rmly clamped while being drilled, and is, therefore, provided with an opening 19 through whichthe drill 4 passes for drilling t e 110 hole in the nipple, and which is clamped 20, pivoted at 21, and outwardly spring heldby the spring 22. rlhe outward moven'icnt ot the member 2() is limited by the stop 2B, so that the free end 24 can not swine' over against the guide 18 and block the entrance or' the nipple between the lguides 13 and The arm ot the Y-shaped lever 9 is turned forward, as indicated at 26, and has adjustablj,T carried thereby a block 2?, and adjustable by means ofA the turn screw 28. The bloeitv is horizontally supported to have adjustable movement by means of the screw 29.

The member 2O has in its front face a V- eliaped vertical notch 30, with the beveled Jfaces 31 an."Vv on either side ot the nijple 33 while it is being' drilled. The rear 'iacect' the member 2t) is provided with the beveled portion 34, terminating in the 'llat 'tace B5 against which the block 27 bears and lirmly clamps the nipple against the plate 13 while beine' drilled. Pivotally connceted to the arm 2li, at 36, is a link 37 which has its opposite end pivotally connected at 38 to the block 39, carried by the lealz spring 4t) and rigidly supported by the stud .il on the base 1, whereby there is maintained a spring' tension on the arm 26 and the link connection 37 compensates for the increasing pressure oi the spring.

The nipples to be acted upon are ted to the lixture trom the chute 42 by means of the member 43 which is controlled and timed with the fixture by having the rod connected to the stem 11 by the screw 45.

he opposite end ot' the rod is connected to the lever 46, to which the member 43 is connected, all of which is shown and described in the application Serial No. 629,718 filed April 3, 1923, and, therefore, needs no further description.

The lever 2O can be adjusted to theV right or lelt by having` the stud or pivot mem- 'ner 21 in the form of an eccentric, as shown in dotted lines in Fig. 2.

Carried by the groovel 48 in the base 1 in rear oi the (guide and clamped plate 2t), agauge bar 49, which serves as a support tor the lower end of the nipple. This bar is tapered and heldby the screw 50, so that the nipples may be held in diiferent positions tor drilling the transverse opening at ditlerent3 points relative totheir ends.

ln operation, the nipples are fed to the lixturet'rtmr the chute 42, one during'eac'h reciprocation of the bar 7, and controlled through the medium of theV member 43, as heretofore described. The nipples as they nass from the chute in a" vertical position enter the space between` the guide 13 and portion l5 of the'gnide 14 and assume a vertical position, the nipple at the same time being clamped between the guide 13 and the clamping lever 20, as shown in Fig.

oii the drawings.

The drill is ted forward, as hereto'lzme described, and moves the rod 7 to the right (Fig. 2) so that the Yfeed plate 18-having` just pushed a nipple into position-is moved laarkward to allow another nipple to be discharged trom the chute. Simultaneously with this movement, the block 2l' engages the projection ai the rear tace of the clamping lever 2() and irmly clamps the nipple llietween it andthe guide plate 13 and holds it while. beingl drilled. The drill, having completed its drilling operation, starts bach and the rod 7 is drawn to the left (Fig. 2). The first part oit' this movement throws the blochY 2l troni engagement with the rear edge or projection ot the clamping lever 2() and relieves the same ot the pressure thereon. The spring however, holds the lever in the position shown in Fig. 2, so that the nipple is still held by the lever in` vertical position. By this time the feed plate 18 hasl engaged the second nipple and forced it outward against the nipple being held by the lever 20, thus forcing said nipple trom the machine and simultaneously placing the second nipple in position. By this time. the drill has again started iorward and the member 9 is being rocked upon its pivot-- to withdraw the feed plate 18--and at the same time the block 27 engages the clamping member 20, so that when the drill starts on itsI drillingl operation the nipple is lirmly clamped.

Having thus described our invention, what we claim as new and desire to secure by lietters-Patent, is:

l. rlfhe combination with a drilling machine, oli a work support, a guide carried by said support, a clamping member adjacent said Iguide, and means operated by the drilling; machine tor operating' the clamping` meml'ier duringthe forward movement ot the drill tor holding` the nipple and means carried by the clamping member for discharging the nipple on thel rearward movement of the drill.

2. rlhe combination with a. drillingmachine, ot a work support, a guide carried by the support, a clamping member adjacent said guide, means tor operating' said clamping member on` the forward m0vement of the drill, and means carried by the clamping` member tor discharging` the nipi ple from the clamping member" and simultaneously placing` another member in position on the rearward movement of the drill.

3. The combination with a drilling machine, ot' a work support, a guide Vcarried by said support, a clamping member adjacent said' guide, means for locking said clamping member on the forward movement lill) lll) of the drill, and means carried by the clamping member for forcing another nipple in position behind the clamping member which simultaneously forces the previously drilled nipple from the clamping member upon the rearward movement of the drill spindle. 4

il. The combination with a drilling machine, of a work support, a guide way for two nipples, means for clamping-one of the nipples on the forward movement of the drill, and means carried by the clamping Vmeans and operated during the rearward movement of the drill for engaging the nipple and forcing it into clamping position and forcing the previously drilled nipple from the clamping means.v

5. The combination with a drilling machine, of a work support, a guide way for two nipples, a pivot-ed clamping member for one rof said nipples on the forward movement of the drill, and means carried by the clamping means andoperated by the rearward movement of the drill for forcing the other nipple behind the clamping member and simultaneously forcing the previously drilled nipple from the clamping member.

6. The combination with a drilling machine, of a work support, a guide way for two nipples, a pivoted clamping member for one of said nipples, means for locking said clamping member on the forward movement of the drill spindle, and means for releasing the clamping Vmeans on the rearward movement of the drill and said clamping member simultaneously engaging. the other nipple and forcing it behind the clamp'k and simultaneously forcing the previously drilled nipple from the clamping member.

7. The combination with a drilling ma chine, of a work support, a guide for two nipples, a pivoted clamping member holding one of said nipples against the guide, a Y-shaped lever operated bythe drilling `machine and having one arm locking the clamping member during the forward movement of the drill, and the other arm of the lever engaging the other nipple and forcing it into position in respect to the clamping and simultaneously forcing the first nipple from the clamp during the rearward move- .ment of the drill.

8. The combination with a drilling machine, of a work support, a guide for two nipples, a clamping member holding one 9. The combination with a drilling machine, of a work support, a guide for the nipple, an adjustable plate for supporting the nipples and raising and lowering the same in respect to the guide, a` clamping member for clamping a nipple to the guide, means for locking said clamping member, and means for releasing the locking means and simultaneously forcing the nipple behind the clamping member and forcing the previously drilled nipple from the drilling position.

10. The combination with a. drilling machine, of a work support, a guide for the nipples, a pivoted clamping member having a V-shapedl cut to hold the nipple, a spring normally holding the clamping member in engagement with the nipple, a Y-shaped lever having one arm engaging the clamping member and forcing the clamping member into tight engagement with thev nipple, a spring having a link connection with the Y-shaped lever, means carried by the other arm of the lever for engaging nipple and forcing it opposite the V-shaped cut and simultaneously forcing the previously drilled nipple from the clamping member.

11. rIhe combination with a drilling machine, of a Work support, a guide for the nipples, a pivoted clamping member having a V-shaped cut to hold the nipple against the guide, apivoted Y-shaped lever operated by the drilling machine and having one arm engaging the clamping member when rocked in one direction and the other arm feeding a nipple tothe clamping member, which in turn forces the drilled nipple from the lixture when the lever isV rocked in the opposite direction.

12. The combination with a drilling machine, of a work support, a guide for the nipples on the support, a pivoted spring pressed clamping member having a V- shaped out to hold the nipple and a beveled outer end, and means for forcing a nipple against thebeveled end and the clamping member out and placing the nipple opposite the V-shaped cut and simultaneously forcing the drilled nipple from the clamping member.

V13. The combination with a drilling machine, of a work support, a guide on the support, a pivoted clamping member having a V-shaped cut to hold the nipple and having a beveled outer end, and means 1,20 for forcing the clamping memberagainst and iifn'ei'in i the elampiifi' tore/irlr ing' n position.

l5. The ci'. chine. :i port. a clampinf' means for Aion with a drilling ma- :lili-'ill` ot a work Supd bf.' the Sni'iport, a adiacenl' .said guide, -fl, damping member and operai iieretine' eam on the 'o-rwar'. "l the drill1 and iiieana efirricd by' the Clamping' member for dieehara'ine; the nipples, im the ehimpingr member1 and simaltaneouelv placing4 another member in position on the rearward movement oi the Cain operated means.

16. The con'ibination with a drilling' machine. cam operated drill. or a Work snpportfa guide carried bv the support'. a elampinoj membe.' adiacent Said guide, means eonneetefl with the eam drill operaliinoj means ier oneratinnj said clamping` member on the 'Forward movement ot the drill. and means carried bfi the clamping n'iemlier `for dieehara'inn; the nipples from the clamiiinej member .and simnltaneonslv plaeinfi' ...notlier in position on the rearward movement ot' the cam drill operating means.

i7. The combination with hine olf' a niveted member` a eain driven bv the drilling' maf-bine and cooperating; with the pivoted n'iember operating the same, a support. a reaide carried bv the support. a elampine' men'iber adjacent said guide. means connected to the pivoted member for operating); said member on the forward movement et the drill. and means carried by the clamping; member 'for discharging the nipples 'trom the clainpino member and siy ninltaneonelv placing' another nipple in position on the rearward movement of said pivoted member.

i i8. The eenibination ot' drilling' machine. a drill Carried therebjv. a verticallx` disimeed meiv bei' pivoted at its lower end and having' its Upper end connected to the drill spindle. a eaifn 'for operating' said pivoted member. a support adjacent the drillingI machine. a fluide carried bv the support. a

a drilling' ina-A vi the drill, means for disi ripples 'lion-i the clamping.;` ine iiiltaneonnlj.' placing' another in position on the rearward move`4 nent i the drill.

19 yille eombination with a 'drilling machine` oil a support adjacent thereto, a guide two nipples a pivoted clamping' inem-- bei' roi' sain nipples on the forward movement oli the drill. and meair-fy carried b v thel ted elannjfing member 'for :forcing the other nipple behi' d the clamping` member and sini-11H` i forcing); the previously drilled niA l,le iiia'aii the Clamping' member on ihe rearward movement of the drill.

Q0. The combination with a drilling; machine, oli a support a-'iljaeent thereto, a `guide for two nipples. a pivoted clamping` mein` bei' for said nipples on the forward movement of the drill. and a rigid arm carried bv the pivoted clamping` memberior forcing' the other nipple behind the clamping meinber and siinnlianeomiv 'forcing the previouslv drilled nipple from the elanmine: member on the rearward movement oi the drill.

'21. The con'ibination with a drillinga machine. oi a support adjacent thereto, a guide wav for two nipples a pivoted clamping' member for one oi said nipplesr1 a pivoted member adapted to operate the clamping member. and a rigid arm carried b v the nivoted member 'for forcing' the other nipple behind the elampingzj'member and .simultanec v torcin the nrevioiislv 'drilled nipple from the clamping member on the rearward movement of the drill.

2Q. rThe combination with a drilling' machine. of a support adiaeent thereto. a guide wav tor two nipples. a pivoted clamping' member tor one o? .said nipples. a pivoted member 'for holding' said clamping member7 and a rig-id arm carried bv the pivoted member wherebv on the rearward moif'ement of the 'drill the clamping member is released. and the rigid member forcing' the other nipple behind the elai'npine` member and sin'mltaneonslf: 'Forcing' the previouslyY drilled ninnle 'From the clamping member.

in testimoni' whereof. we our Signatnree.

HARRY rl, llNGSBUR-Y. lCDllTi-RD J.. lUNGSBURY,

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